Scrub-brush machine



(No Model.)

2 Sheets-Sheet 2.

No. 412,948. 2 Patented Oct. 15, 1889. W F

WITNESSES: INVENTQR: flaw/W M Aw ATTORNEYS.

N. PETERS, Pboib-Lithegvaphnr, Washinpon. .C.

UNITED STATES ADDISON M. COOK, OF BRIDGEHAMPTON, ASSIGNOR TO ARTHUR S. FRENCH,

OF BROOKLYN, NEIV YORK.

SCRUB-BRUSH MACHINE.

SPECIFICATION forming part of Letters Patent No. 412,948, dated October 15, 1889..

Application filed November 1. 1888. Serial No. 289,711. (No model.)

To all whom it may concern:

Be it known that I, ADDISON M. COOK, of Bridgehampton, in the county of Suffolk and State of New York, have invented a new and Improved Scrub-Brush Machine, of which the following is a full, clear, and exact description.

The object of this invention is to provide a machine by means of which scrub-brushes of the class wherein the splints are integral with the body or handle of the brush may be quickly and easily produced, the invention consisting in the. construction and arrangements of parts, as will be hereinafter described, and specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures and letters of reference indicate corresponding parts'in all the views.

Figure 1 is a central sectional elevation of my improved scrub-brush machine. Fig. 2 is a sectional plan View, the viewbeing taken on line a: an of Fig. 1; and Fig. 3 is a crosssectional elevation on line y y of Fig. 1, the vise, however, being represented as it appears when moved to a position at right angles to that in which it is shown in Fig. 1.

In constructing such a machine as the one forming the subject-1natter of this applica tion I provide a bedplate 10, upon which there is mounted a slide 11, the slide being provided with flanges 2, which enter undercut grooves 3, formed in the bed-plate 10. To the slide 11, I secure a vise 12, the vise being connected to the slide by a bolt 13, upon which it is free to turn. The vise 12 may be of any construction desired; but in practice I prefer such a vise as the one illustrated in the drawings-that is, one wherein the fixed jaw a is rigidly connected to a horizontal plate 6, the plate being recessed, as shown at c, to

receive the lower end of the movable jaw d. To the fixed jaw a there is pivotally connected a stirrup c, and this stirrup carries a set-screw f, which maybe turned to bear against the movable jaw or against a wear-plate, as 9, that is carried by the jaw. Near one end of the slide 11, I arrange a rack let, and above this rack I mount a rocking lever 15, to one end of which lever there is pivotally connected a pawl 16, while to the other end of. the lever there is connected an upwardly-extending rod 17, which passes through an aperture formed in an arm 19, that extends outward from a vertically-moving slide 20, the arm 19 being supported by a brace, as 21, if desired. The side faces of the slide 20are recessed to receive guiding-strips 22, that are supported by a tram ework A, said frame-work being of any proper form to support the guidingstrips 22 and a crank-shaft 23, to which crank-shaft the slide 20 is connected by means of a pitman 2%. To the lower end of the slide 20, I connect a blade or chisel 25, the shank of said chisel being inserted in a socket formed in the slide and held therein by a set-screw 26. To the upper end of the rod 17 there is secured ahead 27, and between the head and the upper face of the arm 19, I arrange a cushioning-spring 28. That end of the lever 15 to which the rod 17 is connected is formed with a tooth 29, that engages the rack 14-, in a manner to be hereinafter described.

In operation the block from which the brush is to be formed is clamped in the vise 12, the vise at this time being in the position in which it is shown in Fig. 2, all accidental displacement of the vise being prevented by means of a pin 4, that is fitted in an aperture in the slide 11, the pin acting to hold the horizontal plate or arm 1) against a stop 30, that is secured to the slide 11. After the block has been adjusted as above described, the slide 11 is placed in a position such that when a reciprocating motion is imparted to the slide 20 the knife 25, carried by said slide, will strike just within that edge of the block which is marked 2' in Fig. 1. Then at each reciprocation of the slide 20 the rod 17 will be drawn upward, and in being so drawn upward will act through the medium of the lever 15 and the pawl 16 to advance the slide 11 in the di reotion of the arrow shown in connection therewith in Fig. 1, the slide being held in position, however, and against accidental-dis placement by the tooth 29, which engages the rack 14., as shown in Fig. 1, the moment the arm 19 is lowered a sufficient distance to permit of such engagement. has been advanced a sufficient distance to carry the block from beneath the knife 25, the'slide is moved back again in a direction opposite to that indicated by the arrow, the pin 4 is withdrawn, and the vise is moved to the position in which it is shown in Fig. 3,

said position being indicated by dotted lines in Fig. 2, the plate I) in this case abutting against a stop 30, and being held by the pin 4:, which pin is placed within a properly-located aperture in the slide 11. Then after the vise has been turned a reciprocating motion is again imparted to the knife 25, and the cuts originally formed in the block are crossed by other cuts at right angles, thus producing a series of splints all connected to a common back or body, as is necessary in the production of such brushes as were referred to in the fore part of this specification.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with the verticallyreciprocating cutter or knife, of a horizontal slide thereunder, provided with a vise or holder and a rack, a pawl engaging said rack, a lever to which said pawl is pivoted, and an operating-rod'connected to said lever, substantially as set forth.

2. The combination, with the vise-carrying slide and its rack, of a lever having a stop projection and a pivoted pawl engaging said rack, and an operating-rod connected to said lever, substantially as set forth.

3. The combination, with a vertically-re ciprocating arm having an aperturein its outer end, a vertical rod extending through said aperture and having a head at its upper end, and a cushioning-spring between the head After the slide 11 and arm, of the vise-carrying slide having a rack, and a lever connectedto the lower end of the rod and having a pawl engaging said rack, substantially as set forth.

1 4E. The combination, with the reciprocating cutter, of the slide thereunder, a vise mdunted on said slide and provided with vertical fixed jaw, a horizontal plate to which said jaw is rigidly secured, provided with a vertical recess in front of said fixed jaw, a movable jaw stepped at its lower end in said recess, and a stirrup pivoted to the upper end of the fixed jaw and having a set-screw to bear against the movable jaw when the outer end of the 'stirrup is swung thereover, substantially as set forth. Y

5. The combination, with a base-plate, of a slide mounted thereon, a vise carried by the slide, stops, as 30 and 30, arranged in connection with the vise, a rack carried by the slide, a pawl-carrying lever arranged above the rack, a vertically reciprocating slide, a knife carried thereby, an arm extending outward from the slide, and a rod connecting said arm and the pawl-carrying lever, as and for the purpose stated.

6. The combination, with a base-plate, of a slide 11, a vise 12, connected thereto by a bolt 13, stops 30 and 30, carried by the slide, a rack 14, a lever 15, provided with a pawl 16 and with a tooth 29, a reciprocating slide 20, a knife 25, carried by the slide, an arm 19, extending outward from the slide, and a rod 17, connected to the lever 15 and to the arm 19, substantially as described.

- ADDISON M. COOK.

Witnesses:

SAMUEL O. I'IEDGES, HENRY P. HEDGES. 

